Hi everyone
We built 40M. traps rotary dipole but we have problem empedance and SWR.
Traps is 4 cm. diameter pvc pipe and 16 tour.
Stars is 3 x 51 cm. aluminum cord
Hairpin macth is 2 x 51.5 and 33 cm.
I have problem at 40 M. SWR and very low empedance and my pro3 tuners not tune this antenna. also this antenna work at 12 m. i tune antenna very good work no problem but 40M. problem.
My next job use 1:2 balun (12 or 20 ohm to 50 ohm balun)
https://picasaweb.google.com/112487258095492067574/40MRotaryDipole#what i make need help please.